18. Historic American Buildings Survey Albert S. Burns, Photographer October 1, 1935. JEFFERSON STREET LOCK, LOOKING EAST LOCK #4 - Chesapeake & Ohio Canal, Georgetown Section, East & West parallel to M Street Northwest, Washington, District of Columbia, DC



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A remarkable engineering achievement of the early 19th century that played an important role in the development of Georgetown commerce, and stimulated trade and settlement of the interior.